Is CHEK2 a cause of the Li–Fraumeni syndrome?
- 1Academic Unit of Medical Genetics and Regional Genetics Service, St Mary’s Hospital, Manchester, UK
- 2CR-UK Paediatric and Familial Cancer Research Group, Royal Manchester Children’s Hospital, Manchester, UK
- 3Centre for Research in Women’s Health, Women’s College Hospital, Toronto, Ontario, Canada
- Professor D G Evans, Academic Unit of Medical Genetics & Regional Genetics Service, St Mary’s Hospital, Hathersage Road, Manchester, M13 0JH, UK;
We have reviewed the evidence for CHEK2 as a cause of Li–Fraumeni syndrome (LFS) in view of the continued debate about the cancer spectrum associated with mutations in this gene.1 In 1969 Li and Fraumeni reported four families with an autosomal dominant predisposition to a range of cancer types in children and young adults, including soft tissue sarcoma and breast cancer.2 In 1988, they extended their analysis to 24 families to characterise better the phenotype of the syndrome.3 These families contained greater than expected numbers of soft tissue sarcomas, osteosarcomas, breast cancers, childhood adrenocortical carcinomas, brain tumours and leukaemia. This group of cancers was soon accepted as the formal criteria for the clinical definition of classical LFS (box 1).
Li–Fraumeni syndrome (LFS) criteria
Proband with any bone or soft tissue sarcoma, diagnosed under the age of 45 years
one first degree relative with cancer under 45 …